20158085

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 4517755

約数列:

[1, 5, 101, 179, 223, 505, 895, 1115, 18079, 22523, 39917, 90395, 112615, 199585, 4031617, 20158085]

約数ペア:

[(1, 20158085), (5, 4031617), (101, 199585), (179, 112615), (223, 90395), (505, 39917), (895, 22523), (1115, 18079)]